Question
Lucy and her bike together have a mass of 120 kg. She slows down from 4.5m/s to 3.5m/s . How much does her kinetic energy decrease by? Enter a number
Answer
4.1
(287 Votes)
Zachariah
Master · Tutor for 5 years
Answer
# Explanation:## Step 1:Calculate the initial kinetic energy (KE initial